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DOI: 10.1371/journal.pone.0169319
Title:
Eutrophication in Poyang Lake (Eastern China) over the Last 300 Years in Response to Changes in Climate and Lake Biomass
Author: Mengna Liao; Ge Yu; Ya Guo
Source Publication: PLOS ONE
ISSN: 1932-6203
Indexed By: SCI-E
Publishing Year: 2017
Date Published: 2017-1-3
Volume: 12, Issue:1
Language: 英语
Keyword: Lakes ; Biomass (ecology) ; Algae ; Surface water ; Community ecology ; Sediment ; Limnetic ecosystems ; Diatoms
Subject in Chinese: 吸收 ; 湖泊 ; 生物量 ; 富营养化 ; 吸附作用 ; 地表水
Subject: ABSORPTION ; LAKES ; BIOMASS ; EUTROPHICATION ; SURFACE WATER
English Abstract: Poyang Lake is suffering from persistent eutrophication, which is degrading the local ecosystem. A better understanding of the mechanisms that drive eutrophication in lake systems is essential to fight the ongoing deterioration. In this study, hydraulic residence time (HRT) was used to evaluate Poyang Lake’s trophic state. A hydrology and ecosystem forced model was constructed to simulate long-term changes in algae and aquatic plant biomass and total phosphorous (TP). A comparison analysis revealed that between 1812 and 1828 (i.e., a consistent-change stage), climate and hydrology were the main driving forces, while algae and aquatic plant biomass contributed only 20.9% to the trophic changes in Poyang Lake. However, between 1844 and 1860 the biomass predominated contributing 63.6%. This could be attributed to nutrient absorption by algae and aquatic plants. A correlation analysis of the water TP and algae and aquatic plant biomass revealed a strong positive relationship. However, the algae and aquatic plant growth rate tended to decline after the biomass reached half of the maximum. This research reconstructs the long-term trophic evolution of Poyang Lake and provides a better understanding of the relationship between climatic and hydrological changes and lake ecosystems.
Related Link: http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0169319&type=printable
Citation statistics:
被引频次[WOS]:3   [查看WOS记录]     [查看WOS中相关记录]
Document Type: 期刊论文
Identifier: http://119.78.100.177/globalchange/handle/2HF3EXSE/25648
Appears in Collections:过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响

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Affiliation: University of Chinese Academy of Science, Beijing, PR China;College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, PR China;State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, PR China;State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, PR China

Recommended Citation:
Mengna Liao,Ge Yu,Ya Guo. Eutrophication in Poyang Lake (Eastern China) over the Last 300 Years in Response to Changes in Climate and Lake Biomass[J]. PLOS ONE,2017-01-01,12(1)
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